prime minister, the head of government in a country with a parliamentary or semipresidential political system. In such systems, the prime minister—literally the “first,” or most important, minister—must be able to command a continuous majority in the legislature (usually the lower house in a bicameral system) to remain in office.

The prime minister of the United Kingdom is the principal minister of the crown of His Majesty's Government, and the head of the British Cabinet. There is no specific date for when the office of prime minister first appeared, as the role was not created but rather evolved over time through a merger of duties. [ 1 ]

Learn about the history and procedure of the prime minister of the United Kingdom, the leader of His Majesty's Government. See the names, political parties and time in office of all the prime ministers from 1721 to 2024.

World leaders can go by many titles: premier, chancellor, dear respected comrade. But two of the most common are president and prime minister. What differentiates them other than the latter’s hint of continental flavor? A prime minister, by definition, must be able to command a legislative majority.

British Prime Minister Keir Starmer says he has no plan to speak with Russian President Vladimir Putin as he said support for Ukraine was the U.K.’s top priority at this week’s G20 summit

The prime minister of the United Kingdom is the head of government of the United Kingdom. The prime minister advises the sovereign on the exercise of much of the royal prerogative, chairs the Cabinet, and selects its ministers.

Britain's Labour Party has handed a brutal defeat to the Conservatives. Party leader Keir Starmer will be prime minister, replacing Rishi Sunak.

Prime Minister Keir Starmer took office in Britain on Friday and promised a “national renewal” after his center-left Labour Party won a landslide election victory that decisively swept the...

For someone often derided as dull, Keir Starmer has delivered a sensational election result. Starmer has led Britain’s Labour Party to a landslide election victory, and on Friday officially became prime minister.